Polygonatum plant named ‘Angel Wing’

ABSTRACT

A new and distinct cultivar of  Polygonatum  plant named ‘Angel Wing’, characterized by its compact and upright plant habit; freely clumping and vigorous growth habit; and variegated leaves with relatively wide white-colored margins.

Botanical designation: Polygonatum odoratum.

Cultivar denomination: ‘Angel Wing’.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar of Polygonatum plant, botanically known as Polygonatum odoratum, and hereinafter referred to by the name ‘Angel Wing’.

The new Polygonatum plant is a naturally-occurring whole plant mutation of Polygonatum odoratum ‘Variegated’, not patented. The new Polygonatum was discovered and selected by the Inventor as a single plant from within a population of plants of ‘Variegated’ in a controlled greenhouse environment in North Reading, Massachusetts in 1990.

Asexual reproduction of the new Polygonatum plant by divisions in a controlled environment in North Reading, Massachusetts since 1995 has shown that the unique features of this new Polygonatum plant are stable and reproduced true to type in successive generations.

SUMMARY OF THE INVENTION

Plants of the new Polygonatum have not been observed under all possible environmental conditions. The phenotype may vary somewhat with variations in environment and cultural practices such as temperature and light intensity without, however, any variance in genotype.

The following traits have been repeatedly observed and are determined to be the unique characteristics of ‘Angel Wing’. These characteristics in combination distinguish ‘Angel Wing’ as a new and distinct cultivar of Polygonatum:

-   -   1. Compact and upright plant habit.     -   2. Freely clumping and vigorous growth habit.     -   3. Variegated leaves with relatively wide white-colored margins.

Plants of the new Polygonatum differ primarily from plants of the parent, ‘Variegated’, in the following characteristics:

-   -   1. Plants of the new Polygonatum have shorter rhizomes than         plants of ‘Variegated’.     -   2. Plants of the new Polygonatum have shorter stems with shorter         internodes than plants of ‘Variegated’.     -   3. Leaves of plants of the new Polygonatum have broader         white-colored margins than leaves of plants of ‘Variegated’ .         Plants of the new Polygonatum can be compared to plants of         Polygonatum odoratum ‘Double Stuff’, disclosed in U.S. Plant         Pat. No. 19,624. Plants of the new Polygonatum differ primarily         from plants of ‘Double Stuff’ in stem color as plants of ‘Double         Stuff’ have red-colored stems.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying colored photographs illustrate the overall appearance of the new Polygonatum plant, showing the colors as true as it is reasonably possible to obtain in colored reproductions of this type. Colors in the photographs may differ slightly from the color values cited in the detailed botanical description which accurately describe the colors of the new Polygonatum plant.

The photograph at the bottom of the sheet comprises a side perspective view of a typical plant of ‘Angel Wing’.

The photograph at the top of the sheet is a close-up view of typical leaves of ‘Angel Wing’.

DETAILED BOTANICAL DESCRIPTION

The aforementioned photographs and following observations, measurements and values describe plants grown in Lancaster, Pa. in a polyethylene-covered greenhouse during the winter and spring. During the production of the plants, day temperatures ranged from 2° C. to 21° C. and night temperatures ranged from 2° C. to 13° C. Plants were ten months old when the photographs and the description were taken. In the detailed description, color references are made to The Royal Horticultural Society Colour Chart, Fifth Edition, 2007, except where general terms of ordinary dictionary significance are used.

-   Botanical classification: Polygonatum odoratum ‘Angel Wing’. -   Parentage: Naturally-occurring whole plant mutation of Polygonatum     odoratum ‘Variegated’, not patented. -   Propagation:     -   -   Type.—By divisions.         -   Root description.—Medium in thickness, fleshy; white in             color.         -   Rhizome description.—Length: About 9 cm. Diameter: About             1.2 cm. Texture: Smooth, glabrous. Color: Close to 158A. -   Plant description:     -   -   Type of plant.—Herbaceous perennial.         -   Plant and growth habit.—Compact and upright plant habit;             freely clumping and vigorous growth habit; leaves developing             from rhizomes.         -   Plant height.—About 32 cm.         -   Plant width.—About 29 cm.         -   Internode length.—About 2.5 cm to 3.5 cm.         -   Stem texture.—Smooth, glabrous.         -   Stem color.—Close to 144B. -   Foliage description:     -   -   Arrangement.—Alternate, simple; sessile.         -   Length.—About 7.4 cm.         -   Width.—About 4.5 cm.         -   Shape.—Elliptical.         -   Apex.—Acute.         -   Base.—Equilateral to cuneate.         -   Margin.—Entire.         -   Venation pattern.—Pinnate; arcuate.         -   Texture, upper and lower surfaces.—Smooth, glabrous.         -   Color.—Developing leaves, upper surface: Close to 137B.             Developing leaves, lower surface: Close to 191A. Fully             developed leaves, upper surface: Centers, close to 137A;             towards the margins, close to 155A; venation, same colors as             surface colors. Fully developed leaves, lower surface:             Centers, close to N138C; towards the margins, close to 155B;             venation, same colors as surface colors. -   Flower description: Flower development has not been observed on     plants of the new Polygonatum. -   Disease/pest resistance: Plants of the new Polygonatum have not been     observed to be resistant to pathogens and pests common to     Polygonatums. -   Garden performance: Plants of the new Polygonatum have exhibited     good garden performance and to tolerate rain and wind and have been     observed to tolerate temperatures ranging from −25° C. to 40° C. 

1. A new and distinct Polygonatum plant named ‘Angel Wing’ as illustrated and described. 